The correct answer is option 1, President. The President of India is the constitutional head of the Government of India. The President is the highest-ranking official in the country and represents the Indian state both domestically and internationally. The President is elected by an electoral college comprising the elected members of both houses of Parliament and the elected members of the Legislative Assemblies of the states. The President`s role is largely ceremonial, with the power to appoint the Prime Minister, dissolve Parliament, and give assent to bills passed by Parliament. The President also serves as the Commander-in-Chief of the armed forces. It is important to note that the Prime Minister, though a significant position, is not the constitutional head of the government.